Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Que tipo de arquitetura o Ford Escort Wagon possui?
 ###Tabelas: CREATE TABLE fixtures_results (fixtures_results_id AUTO_INCREMENT PRIMARY KEY, Competition VARCHAR, Round VARCHAR, Opponent VARCHAR, Result VARCHAR, Score VARCHAR, Home/Away VARCHAR, Venue VARCHAR, Attendance VARCHAR, Date VARCHAR) CREATE TABLE most-visited_countries_by_international_tourist_arrivals (most-visited_countries_by_international_tourist_arrivals_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Country VARCHAR, UNWTO Region VARCHAR, International tourist arrivals (2012) VARCHAR, International tourist arrivals (2011) VARCHAR, Change (2011 to 2012) VARCHAR, Change (2010 to 2011) VARCHAR) CREATE TABLE past_competitions (past_competitions_id AUTO_INCREMENT PRIMARY KEY, Years VARCHAR, Competition VARCHAR, Vehicle Name VARCHAR, Original Vehicle VARCHAR, Architecture VARCHAR) CREATE TABLE grandmasters (grandmasters_id AUTO_INCREMENT PRIMARY KEY, Name VARCHAR, Country VARCHAR, Birth Date VARCHAR, Date INT, Earned VARCHAR, Peak rating (Nov 2012) INT) CREATE TABLE papakura_local_board (papakura_local_board_id AUTO_INCREMENT PRIMARY KEY, Name VARCHAR, Years VARCHAR, Gender VARCHAR, Area VARCHAR, Authority VARCHAR, Decile INT, Roll INT)  
SELECT Architecture FROM past_competitions WHERE Original Vehicle = ford escort wagon